Colloidal Silicon Dioxide
Premium pharmaceutical grade colloidal silicon dioxide with excellent glidant and anti-caking properties for improved powder flow and processing.
Premium pharmaceutical grade colloidal silicon dioxide with excellent glidant and anti-caking properties for improved powder flow and processing.
Colloidal Silicon Dioxide is a submicroscopic fumed silica with a three-dimensional structure. It is widely used as a glidant and anti-caking agent in pharmaceutical formulations to improve powder flow properties and prevent agglomeration during processing and storage.
| Appearance | White, fluffy powder |
| Primary Particle Size | 5-50 nm |
| Specific Surface Area | 200 ± 25 m²/g |
| Moisture Content | ≤ 2.0% |
| Bulk Density | 0.03-0.06 g/cm³ |
| Tapped Density | 0.05-0.10 g/cm³ |
| Solubility | Insoluble in water and organic solvents |
| Silicon Dioxide (SiO₂) | ≥ 99.8% |
| pH (4% suspension) | 3.7 - 4.7 |
| Loss on Drying | ≤ 2.0% |
| Loss on Ignition | ≤ 2.0% |
| Heavy Metals | ≤ 10 ppm |
| Lead | ≤ 2 ppm |
| Arsenic | ≤ 2 ppm |
| Total Aerobic Count | ≤ 100 CFU/g |
| Yeast & Mold | ≤ 10 CFU/g |
| E. coli | Absent/g |
| Salmonella | Absent/25g |
| S. aureus | Absent/g |
| P. aeruginosa | Absent/g |
Improves powder flow properties in tablet formulations.
Prevents powder agglomeration during storage.
Essential in direct compression and wet granulation.
Improves flow properties for capsule filling operations.
Prevents segregation in powder blends.
Used as anti-caking agent in food products.